Audio device



FIG. 1 is a front perspective view of an audio device showing our new design;

FIG. 2 is a rear perspective view of the audio device in FIG. 1;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines shown in the drawings represent the portions of the audio device that form no part of the claimed design. 

CLAIM The ornamental design for an audio device, substantially as shown and described. 